An air-coupled ultrasonic automatic detection defect position calibration device

Abstract

An air-coupled ultrasonic automatic detection defect position calibration device, which relates to the technical field of ultrasonic automatic detection; includes an ultrasonic transmitting probe, two line light sources, a probe holder, an ultrasonic receiving probe and a workpiece to be inspected; wherein, the workpiece to be inspected is placed horizontally; the probe holder Horizontally and fixedly installed above the workpiece to be inspected; the ultrasonic receiving probe is fixedly installed under the inspected workpiece; the ultrasonic transmitting probe is fixedly installed at the center of the upper surface of the probe bracket; the center of the probe bracket is provided with a through hole to realize the passage of ultrasonic waves ; 2 line light sources are fixedly installed on the side wall of the ultrasonic transmitting probe; and the 2 line light sources pass through the probe bracket downwards to realize the irradiation on the upper surface of the workpiece to be inspected; the invention realizes the air-coupled ultrasonic automatic detection technology During the internal quality inspection of composite materials, the precise positioning of internal defect positions.

Description

technical field [0001] The invention relates to the technical field of ultrasonic automatic detection, in particular to an air-coupled ultrasonic automatic detection defect position calibration device. Background technique [0002] With the continuous development of the aerospace industry and the progress of composite material production technology, some new and special composite materials have emerged. This kind of special composite material has many advantages such as high melting point, low density, corrosion resistance, oxidation resistance and ablation resistance, and is an important material for new future aerospace. Due to the special process state of this type of composite material, internal defects such as delamination and local low density will occur inside the material, resulting in a decrease in material performance. In an extremely complex working environment, it will cause local and large-scale damage to the product or even complete failure. Therefore, it is n...

AI Technical Summary

Problems solved by technology

[0003] When this type of material is automatically detected by air-coupled ultrasonic testing, if internal defects are detected, the approximate position of the defect can only be calibrated on the product according to the position of the probe, which has a certain deviation from the actual position of the defect, and better measures are needed. The method realizes the precise calibration of the defect position

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